PA is recognized as the most widely used and known engineering plastic in the current market.
PA6 has the best performance, very tough, even at low temperatures, and high hardness in the surface, toughness, mechanical lower shock, and abrasion resistance. Combined with these characteristics and good insulation, and chemical properties, it has become common-level materials. Its widely used in a variety of mechanical structures and spare parts. Compared to PA6, PA66 own the higher hardness, rigidity, a good resistance to wear and heat deflection temperature.